SE8504258D0 - DEVICE FOR CENTERING OF OPTICAL FIBERS FOR WELDING - Google Patents

DEVICE FOR CENTERING OF OPTICAL FIBERS FOR WELDING

Info

Publication number
SE8504258D0
SE8504258D0 SE8504258A SE8504258A SE8504258D0 SE 8504258 D0 SE8504258 D0 SE 8504258D0 SE 8504258 A SE8504258 A SE 8504258A SE 8504258 A SE8504258 A SE 8504258A SE 8504258 D0 SE8504258 D0 SE 8504258D0
Authority
SE
Sweden
Prior art keywords
light
fibre
modes
fibres
radius
Prior art date
Application number
SE8504258A
Other languages
Swedish (sv)
Other versions
SE453334B (en
SE8504258L (en
Inventor
O Pers
Original Assignee
Ericsson Telefon Ab L M
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Priority to SE8504258A priority Critical patent/SE453334B/en
Publication of SE8504258D0 publication Critical patent/SE8504258D0/en
Priority to US06/901,128 priority patent/US4765704A/en
Priority to GB8620934A priority patent/GB2180366B/en
Priority to DE3630163A priority patent/DE3630163C2/en
Priority to NL8602267A priority patent/NL193292C/en
Priority to JP61214972A priority patent/JPH07101247B2/en
Priority to CA000518107A priority patent/CA1272373A/en
Publication of SE8504258L publication Critical patent/SE8504258L/en
Publication of SE453334B publication Critical patent/SE453334B/en

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
    • G02B6/14—Mode converters
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/255—Splicing of light guides, e.g. by fusion or bonding
    • G02B6/2551—Splicing of light guides, e.g. by fusion or bonding using thermal methods, e.g. fusion welding by arc discharge, laser beam, plasma torch

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Coupling Of Light Guides (AREA)
  • Optical Couplings Of Light Guides (AREA)

Abstract

A first (1) and a second (4) optical fibre are each retained in its holder (2, 5) by which the ends of the fibres may be centered at a contact location (6). Each of the fibres is bent at a radius (R1) dependent on the light wavelength in its respective light coupling means (8, 9) for coupling light to the fibres. Light from a light source (11) passes the contact location (6) and is measured with the aid of a light detector (14) and a measuring instrument (16). For each fibre (1, 4) the apparatus has a mode filter including a cylinder (17, 18) about which the fibre is bent half a turn. This cylinder has a radius (R2) which is greater than the cylinder radius (R1) in the light coupling means. A light signal (I1) has a basic mode (I2) with symmetric energy distribution, which passes through the first mode filter (17), while higher order unsymmetric modes (I'1) are filtered away. A light signal (I3) in the second fibre (4) has higher order modes (I'3) generated at the contact location, these modes being filtered away in the second mode filter (18), so that a light signal (I4) with only basic modes actuates the detector (14). A splice with low signal attenuation may be obtained by only using the symmetric basic mode during detection of the fibre centering.
SE8504258A 1985-09-13 1985-09-13 DEVICE FOR CENTERING OF OPTICAL FIBERS FOR WELDING SE453334B (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
SE8504258A SE453334B (en) 1985-09-13 1985-09-13 DEVICE FOR CENTERING OF OPTICAL FIBERS FOR WELDING
US06/901,128 US4765704A (en) 1985-09-13 1986-08-28 Apparatus for centering optical fibres during welding
GB8620934A GB2180366B (en) 1985-09-13 1986-08-29 Apparatus for centering optical fibres during welding
DE3630163A DE3630163C2 (en) 1985-09-13 1986-09-04 Centering device for centering fiber optic fibers during welding
NL8602267A NL193292C (en) 1985-09-13 1986-09-09 Device for centering optical fibers.
JP61214972A JPH07101247B2 (en) 1985-09-13 1986-09-11 Optical fiber centering device during welding
CA000518107A CA1272373A (en) 1985-09-13 1986-09-12 Apparatus for centering optical fibres during welding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8504258A SE453334B (en) 1985-09-13 1985-09-13 DEVICE FOR CENTERING OF OPTICAL FIBERS FOR WELDING

Publications (3)

Publication Number Publication Date
SE8504258D0 true SE8504258D0 (en) 1985-09-13
SE8504258L SE8504258L (en) 1987-03-14
SE453334B SE453334B (en) 1988-01-25

Family

ID=20361384

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8504258A SE453334B (en) 1985-09-13 1985-09-13 DEVICE FOR CENTERING OF OPTICAL FIBERS FOR WELDING

Country Status (7)

Country Link
US (1) US4765704A (en)
JP (1) JPH07101247B2 (en)
CA (1) CA1272373A (en)
DE (1) DE3630163C2 (en)
GB (1) GB2180366B (en)
NL (1) NL193292C (en)
SE (1) SE453334B (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6435504A (en) * 1987-07-31 1989-02-06 Sumitomo Electric Industries Device for pair identification of optical fiber
US4889403A (en) * 1987-11-02 1989-12-26 Raychem Corp. Distribution optical fiber tap
DE4004751C2 (en) * 1990-02-15 1999-04-22 Siemens Ag Process for the uninterrupted splicing of optical fibers
GB9104951D0 (en) * 1991-03-08 1991-04-24 Bicc Plc Optical fibre fusion splicing
JPH04315107A (en) * 1991-04-12 1992-11-06 Sumitomo Electric Ind Ltd Method for connecting optical fiber
DE19546443A1 (en) * 1995-12-13 1997-06-19 Deutsche Telekom Ag Combination of optical or electro-optical waveguiding structures
US6266472B1 (en) 1999-09-03 2001-07-24 Corning Incorporated Polymer gripping elements for optical fiber splicing
US6496301B1 (en) * 2000-03-10 2002-12-17 The United States Of America As Represented By The Secretary Of The Navy Helical fiber amplifier
US7082242B2 (en) * 2003-01-31 2006-07-25 Corning Incorporated Multiple core microstructured optical fibers and methods using said fibers
US7004640B2 (en) * 2003-03-24 2006-02-28 Aurora Instruments, Inc. Low profile local injection and detection system for optical fiber waveguides
US7070342B2 (en) * 2003-03-24 2006-07-04 Aurora Instruments, Inc. Low profile system for joining optical fiber waveguides
US7090414B2 (en) * 2003-03-25 2006-08-15 Aurora Instruments, Inc. Automatic apparatus for cleaving optical fiber waveguides
US6984077B2 (en) * 2003-03-25 2006-01-10 Aurora Instruments, Inc. System for joining polarization-maintaining optical fiber waveguides
DE102007009819A1 (en) * 2007-02-28 2008-09-04 CCS Technology, Inc., Wilmington Light coupling device for optical fiber splicer, has illuminating device provided for coupling light into bend area of optical fiber, and light detecting device detecting light portion, which is decoupled through bend of another fiber
US8003933B2 (en) * 2008-04-30 2011-08-23 At&T Intellectual Property Ii, L.P. Method and apparatus for blocking ambient light in a live fiber optic identifying device
JP5399050B2 (en) * 2008-11-17 2014-01-29 株式会社フジクラ Optical fiber bending receiver

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4270839A (en) * 1979-01-29 1981-06-02 Westinghouse Electric Corp. Directional optical fiber signal tapping assembly
US4313744A (en) * 1980-04-11 1982-02-02 Sumitomo Electric Industries, Ltd. Method and device for automatically fusing optical fibers
US4664732A (en) * 1981-04-27 1987-05-12 Raychem Corp. Methods and apparatus for optical fiber systems
AU551638B2 (en) * 1981-04-27 1986-05-08 Raychem Corporation Optical fibre alignment
JPS57192911A (en) * 1981-05-23 1982-11-27 Nippon Telegr & Teleph Corp <Ntt> Axis aligning device for optical fiber
US4561719A (en) * 1982-03-01 1985-12-31 Corning Glass Works Optical waveguide splicing apparatus and method
NL8201941A (en) * 1982-05-12 1983-12-01 Philips Nv METHOD AND APPARATUS FOR POSITIONING LIGHT-CONDUCTING FIBERS
NL184133C (en) * 1983-10-06 1989-04-17 Nederlanden Staat Method and device for aligning ends of a first light guide and a second light guide together
US4618212A (en) * 1984-05-30 1986-10-21 At&T Bell Laboratories Optical fiber splicing using leaky mode detector

Also Published As

Publication number Publication date
JPH07101247B2 (en) 1995-11-01
GB2180366B (en) 1989-08-23
SE453334B (en) 1988-01-25
NL8602267A (en) 1987-04-01
DE3630163C2 (en) 1994-10-27
JPS6265004A (en) 1987-03-24
GB8620934D0 (en) 1986-10-08
DE3630163A1 (en) 1987-03-26
GB2180366A (en) 1987-03-25
NL193292B (en) 1999-01-04
CA1272373A (en) 1990-08-07
NL193292C (en) 1999-05-06
SE8504258L (en) 1987-03-14
US4765704A (en) 1988-08-23

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